A Mathematical Model for the Dynamics and Synchronization of Cows

TL;DR

This paper introduces a mathematical model using piecewise affine dynamical systems to simulate cow behaviors and study herd synchronization, revealing counterintuitive effects of increased coupling on synchronization.

Contribution

The paper presents a novel mathematical framework for modeling cow activity cycles and herd synchronization, including an exact discrete-time mapping and analysis of coupling effects.

Findings

Cows can synchronize less as coupling increases.

The model predicts complex dynamics in herd behavior.

Extensions suggest biological relevance and potential for further study.

Abstract

We formulate a mathematical model for daily activities of a cow (eating, lying down, and standing) in terms of a piecewise affine dynamical system. We analyze the properties of this bovine dynamical system representing the single animal and develop an exact integrative form as a discrete-time mapping. We then couple multiple cow "oscillators" together to study synchrony and cooperation in cattle herds. We comment on the relevant biology and discuss extensions of our model. With this abstract approach, we not only investigate equations with interesting dynamics but also develop interesting biological predictions. In particular, our model illustrates that it is possible for cows to synchronize \emph{less} when the coupling is increased.